Method normalize

example/src/main/java/ExampleImGuizmo.java:291–298

(float[] a)

    }

    private static float[] normalize(float[] a) {
        float[] r = new float[3];
        float il = (float) (1.f / (Math.sqrt(dot(a, a)) + FLT_EPSILON));
        r[0] = a[0] * il;
        r[1] = a[1] * il;
        r[2] = a[2] * il;
        return r;
    }

    private static void lookAt(float[] eye, float[] at, float[] up, float[] m16) {
        float[] x;